5 in 1 Multiple function designs: multi-functional design, the surface roughness of the drill bit changes from fine to thick from top to bottom, one size nail drill bit can complete the function of multiple sizes, can quickly remove acrylic or hard gel for cleaning, shaping, cutting, smoothing and removing, meet your various needs2-Way rotation: our nail carbide 5 in 1 bit can be rotated to the right or left to achieve smooth cutting in clockwise and counterclockwise directions, very suitable for left and right hands without changing other sizes during workQuality to apply: the nail drill bit is made of cemented carbide and tungsten steel, reliable strength, durability and cutting performance, low heat, less dust, can quickly and well reshape, polish, smooth, grind, and polish, carving and smoothing gel nails or acrylic nailsUniversal 3/32 inch shank: you will get 3 different sizes of nail drill bits, including fine, medium, coarse, which fit most nail drill machines that use 3/32 inch bits, suitable for most gel nails and experienced manicurists or nail art beginnersEasy to clean: the carbide nail drill bits are corrosion resistant, as well as no clogging for nails, you can easily clean the dust on the bits or nails with nail brush, protect the bits after each use, keep you and your clients nails healthy